Envelop-making machine.



I. L. YOUNG. ENVELOP MAKING MACHINE.

APPLICATION FILED OCT. 16. I917.

Patent-ed J 11116 25, 1918.

L'mmm,

2 SHEETS-SHEET I.

ININTOR.

. ATTORNEYS.

I. L. YOUNG. ENVELOP MAKING MACHINE.

APPLICATION FILED OCT. 16. 1917.

2 SHEETS-SHEEf 2.

INENTOR.

Patented June 25, 1918.

A TTORN E VS.

IRVIN L. YOUNG, OF CHICAGO, ILLINOIS.

ENVELOP-MAKING MACHINE.

Specification of Letters Patent.

Patented JnneJ1918.

Application filed October 16, 1917. Serial No. 196,873.' I

To aZZ whomit may concern Be it known that I, IRVIN L. YOUNG, a

citizen of the United States, residing at Chicago, inthe county of (look and State of Illinois. have invented new and useful 1m proveinents in Envelop-Making Machines, of which the following is a specification.

This invention relates to machines for making cnvelops of that type generally known as window envelops, the same having an opening in that portion which is to receive the address, this opening being covered by a sheet of transparent paper, so that theaddrcss. suitably written on the inclosure in the envelop, will be displayed through said covering or window? The invention has for its object to pro vide in a machine of the kind stated, a novel and improved means for applying the trans parent sheet or patch, as it is termed in the art, and to this end, the invention consists in a combination and arrangement of parts to be hereinafter described and claimed, reference being had to the accompanying drawings forming a part of this specification.

In the drawings,

Figure 1 is an elevation of that portion of the machine with which the patch ap plying mechanisn'i is associated, parts being shown in section;

Fig. 2 is a section on the line 22 of Fig. 1;

Fig. 3 is an enlarged section on the line 33 of Fig. 2;

Fig. t is an inverted plan view of a patch severing device;

Fig. 5 is an elevation of a plunger as viewed from the left in Fig. 3, and

Fig. 6' is an elevation of the plunger as it appears when in the dotted line position in Fig. 1. l

Referring specifically to the drawings, the invention is applied to a machine in which a previously formed envelop blank is folded by being forced by a reciprocatory plunger into a folding box. The envelop blank has an opening whose margin has a fresh coating of paste to receive the patch, and the latter is fed to the plunger so that the patch is applied at the same time .the envelop blank is folded. The folding box is shown at 10, and the plunger at 11, the latter being'carried by a stem 11*. The mechanism..-

for operating the plunger has not. beenJillustrated as itxtorms no part of the present 1nvention, and for the same reason the paste applying and other elements of the machine have not been shown. The drawings illustrate only so much of the machine as will suflicc for an understanding of the invention.

At 13 is shown a roll of patch stock, the latter being led down between a feed roll 14 and a pressure roll 14?. Frame members 15 carry a cross bar 15 which carries on its under side a stationary shear blade 16 and a movable blade 17 cooperating therewith. I

from the web. The actuating means for this patch feeding and cutting mechanism will be presently described.

Beneath the cutting mechanism is located a holder plate 22 which receives the out ofl patch dropped by the shears, this'plate being pivotally hung on a shaft 23 extending between and supported by theframe memhere 15. The plate 22 normally hangs pendent as shown dotted in Fig. 3, but swings toward a patch carrier 2% when the latter strikes lugs 25 on the plate. These lugs carry a transverse shaft 26 on which are mounted two spring fingers 27 to prevent the patch from falling off the plate 22 while the latter hangs in pendent position. The spring fingers are spaced from the face of the plate 22 and their lower free endsseat on an outstanding marginal flange 22 -bit the bottom of the plate. The patch is delivered to the plate beneath the spring fingers, and the latter, with the flange 22, serve to retain the patch on the plate. Where the plate 22 engages the patch carrier 24, the latter has grooves 28 to accommodate theguard or retaining fingers 27, the patcl1"being shorter than the distance between, the. grooves.

The carrier 24 is pivoted at 29 to the plunger 11 and has an arm 30 carrying a roller 30 travehng'in a cam slot 31 of a stationary men iber 32.

The plunger stem 11 has spaced side pins or abutments 34. between which the pawlactuating lever arm 20 extends. The plunger stem reciprocates, and on the down stroke the upper pin swings the arm 20 to actuate the pawl, whereby the web of patch pt) the patch.

.stock is fed and a patch is cut a as hereinbefore described. ()n the u p stroke, the bottom pin returns the arm 20 for the next stroke.

5 The plunger stem 11 is supported in bearings 35 having side slots 3G to permit the pins 3i to pass.

The patch carrier 2% is holiow and has a'plane face provided with perforations 3?,

l0 and a flexible hose 38 leading frou'i a suitable suction producing device, is connected to the patch carrier, the interior thereof being a suction chamber. The patches are delivered to the perforated face of the carrier and are 15 held by the suction at the perforations 37.

The carrier is pivotally connected to the plunger 11 at one end thereof, and it is so positioned and dimensioned that when it is in delivering position, its patch-carnving,

perforated face is flush with the bottom or working face'of the plunger. A spring 39 coiled around the pivot 29 of the carrier and pressing against the latter tends to swing the sametoward the plunger to bring its perforated face flush with the bottom of the plunger when the roller 30 clears the cam slot 31.

At the beginning of the working stroke of the plunger 1l, the roller 30 is at the 80 inner end of the cam slot 31, and the carrier 2i has swung away from the plunger. so that its perforated face. is now opposite to, and facing the patch holding plate The suction in the carrier causes the patch to adhere to the perforated face of the carrim', and

the plunger now descending, the cam slot 31, through the roller 30, swings the can rier away from the plate and toward the plunger. As the roller clears the cam slot,

40 the spring 39 closes the carrier up against "the plunger so that the perforated face holding the patch is now flush with the plunger bottom. The phmger, with the carrier in this position, continues its descent and enters the folding box 10, as shown dotted in 1) s 1* 1g. 1, whereupon the envelop blank is the lu s 25 and swin s the holder from the dotted line position to the full line position in Fi The holder 22 is normally in pendent position as shown dotted, and it re-.

ceives the patch in this position. The operation of the patch feeding and cutting mech- 'anism is timed to deliver a patch lo the holder at the proper time.

I. In an envelop making machine, a recipvroeatory blank-folding plunger, a pivoted patch carrier mounted on the plunger, means for swinging the patch carrier outward from the plunger to patch-receiving position and alongside the plunger into patchdelivering position, said carrier, while in the last mentioned position having itsportion which carries the patch flush with the working face of the plunger, and means for delivering a patch to the carrier when in receiving position.

2. In an envelop making machine, a reciproeatory blank-mlding plunger, a pivoted patch carrier mounted on the plunger, means for swinging the patch carrier outward from the plunger to patch-receiving position and alongside the plunger into patch-delivering position, said carrier, while in the last mentioned position having its portion which au'ries the patch flush with the working face of the plunger, a pivoted patch holder, means for feeding patches to said holder, and means for swinging the holder toward the carrier when the latter swings to receiving position.

3. In an envelop making machine. a reciprocatory blank-folding plunger, a pivoted patch carrier mounted on the. plunger, means for swinging the patch carrierrnitward from the plunger to patch-receivil'ig position and alongside the plunger into patch-delivering position, said carrier, while in the last mentioned position having its portion which carries the patch flush with the working face of the plunger, a pivoted patch holder,

means for feeding patches to said holder,

and means on the holder and engageable by the carrier for swinging the holder toward the carrier when the latter swings to receiving position.

i. in an envelop making machine. a re ciprocatory blank-folding plunger, a pivoted patch carrier mounted on the plunger, means for swinging the patch carrieroutward from the plunger to patch-rrweiving position and alongside the plunger int'o patell-delivering position, said carrier while in the last. mentioned position, havii'ig its portion which carries the patch flush with the working face of the 'ilunger, means for delivering a patch to the carrier when in receiving position. and suction means associated with the carrier for holding the patch thereon.

In an envelop making machine. a reciyn-ocatorv blank-folding plunger. a pivoted patch carrier mounted on the plunger. means for swinging the patch carrier outward from.

the plunger lo pal(ah-receiving position and alongside. the plunger into patch-dc]i\'cring position, said carrier while in the last mentioned position. having its portion which ca rrics the. patch llush with the working fare of the plunger, a pivoted patch holdcr.mcaus for feeding patches to said holder, means for swinging the holder toward the carrier when the latter swings to receiving position, and

suction means associated with the carrier'for holding the patch thereon.

6.In an envelo making machine, a reciprocatory blankolding plunger, a pivoted atch carrier mounted on the plunger, means in swinging tlie p atch carrier outward from the plunge lto patch-receiving position and, alongside the pl11nger into patch-delivering position, said carrier While in the last mentioned position,""h'aving its portion which carries the patch fiush with the working of the plunger, a patch holder, suction means associated with the carrier for taking the patches from the holder and retaining the same on the carrier, and means for feeding patches to the holder..

7. In an envelop making machine, a reof the plunger, and means for delivering a patch to the carrier when in receiving position. k v

In testintiony whereof I aflix mjv signature.

- IR VIN L. YOUNG; 

